An extrusion granulation device and method for producing isomalt

Abstract

The invention discloses an extrusion granulation device and method for producing isomalt, comprising a tank body, a top cover is installed on the top of the tank body, both sides of the upper end of the tank body are provided with a feed port, one side of the bottom end of the tank body is provided with a discharge port, and a partition and a discharge plate are provided inside the tank body. The invention adds isomalt concentrate and isomalt powdered crystal seeds into a chamber above the partition in the tank body for extrusion and stirring, mixes the two materials evenly, and then sends the mixed material to a chamber above the discharge plate in the tank body for crushing and then discharge, wherein the extrusion and stirring of the material and the crushing of the material all use a power source, which is not only convenient to operate and has a high degree of automation, but also saves the step of frequent feeding between devices, thereby improving the processing efficiency of isomalt.

Description

Technical Field

[0001] The invention relates to the technical field of extrusion granulation devices, in particular to an extrusion granulation device and a method for producing isomalt. Background Art

[0002] Isomalt, also known as hydrogenated isomaltulose and para-total sugar alcohol, has the following properties: white, odorless crystals, sweet, with a sweetness of about 45%-65% of sucrose, slightly hygroscopic, melting point 145-150°C, specific rotation ≥+91.5° (4% aqueous solution, M / V); soluble in water, its solubility in water is lower than sucrose at room temperature, and close to sucrose after heating, and insoluble in ethanol. When producing hard candies, because isomalt has low water absorption, the stamped, filled, bonded or cast hard candies will not stick together, and are not easy to cold flow. The products produced can be packaged in bulk, without heat sealing and packaging one by one, which can greatly reduce costs and give the products a longer shelf life.

[0003] When granulating isomalt, first add powdered isomalt as seed crystals into the extruder, then add concentrated isomalt refined liquid, extrude and mix the isomalt concentrated liquid and the isomalt powder seed crystals to discharge the material, dry the discharge material by vacuum drying, and then crush and sieve the dried discharge material to obtain the granular isomalt finished product.

[0004] Existing extrusion granulation equipment uses an extruder and a crusher for processing in a step-by-step manner, which not only requires frequent feeding between devices, but is also difficult to operate and has a low degree of automation, thereby reducing the processing efficiency of isomalt. Therefore, the present invention proposes an extrusion granulation device and method for producing isomalt to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an extrusion granulation device and method for producing isomalt, so as to solve the problem that the existing extrusion granulation equipment proposed in the above background technology adopts an extruder and a crusher for step-by-step processing, which not only requires frequent feeding between devices, but is also not easy to operate and has a low degree of automation, thereby reducing the processing efficiency of isomalt.

[0006] To achieve the above object, the present invention provides the following technical solution: an extrusion granulation device for producing isomalt, comprising a tank body, a top cover is installed on the top of the tank body, both sides of the upper end of the tank body are provided with a feed port, one side of the bottom end of the tank body is provided with a discharge port, and a partition and a discharge plate are provided inside the tank body; The partition is located between the feed port and the discharge plate, the discharge plate is located above the discharge port, a plurality of discharge ports and opening and closing components are arranged on the partition, and discharge holes are arranged on the discharge plate; A pushing assembly is arranged above the partition, and the pushing assembly includes a piston cylinder slidably arranged inside the tank body; A processing assembly, comprising a rotating shaft, a stirring rod arranged at the upper end of the rotating shaft and two layers of cutters arranged at the lower end of the rotating shaft, wherein the rotating shaft sequentially passes through the bottom of the tank body, the discharge plate and the partition, the stirring rod is located above the partition, the two layers of the cutters are located between the partition and the discharge plate, and the two layers of the cutters rotate in different directions; A driving assembly is arranged on one side of the tank body, and the driving assembly is connected to the rotating shaft to drive the rotating shaft to rotate.

[0007] As a preferred solution of the present invention, the pushing assembly further comprises a screw rod, which passes through the middle of the piston cylinder and is threadedly connected thereto, the top end of the screw rod is rotatably mounted on the top cover, and the bottom end of the screw rod is provided with a spline groove.

[0008] As a preferred solution of the present invention, wherein: both sides of the piston cylinder are provided with limit blocks, both sides of the inner wall of the tank body are provided with slide grooves, and the limit blocks on both sides of the piston cylinder are arranged in the slide grooves of the tank body; When the limit block of the piston cylinder slides to the top end of the slide groove, the piston cylinder is located above the feed port. When the limit block of the piston cylinder slides to the bottom end of the slide groove, the outer side wall of the piston cylinder closes the feed port.

[0009] As a preferred solution of the present invention, the number of discharge outlets and opening and closing components on the partition is 3-6, the opening and closing components include a cylinder, a connecting plate and a baffle installed at the bottom of the partition, the partition is provided with a placement groove at the top of the discharge outlet, the baffle is arranged in the placement groove, one end of the connecting plate is connected to the output end of the cylinder, and the other end of the connecting plate is connected to the baffle.

[0010] As a preferred solution of the present invention, the cross-section of the baffle is a trapezoidal structure. When the output end of the cylinder is fully extended, the baffle slides to the top of the discharge port to close it. When the output end of the cylinder is fully retracted, the baffle slides to one side of the discharge port to open it.

[0011] As a preferred solution of the present invention, the partition is sleeved outside the rotating shaft, the partition is slidably arranged inside the tank body, the rotating shaft is located below the partition and sleeved with a threaded sleeve, 3-6 bearing plates are arranged outside the threaded sleeve, one end of the bearing plate is connected to the threaded sleeve, and the other end of the bearing plate is connected to the inner wall of the tank body, a spring is arranged between each bearing plate and the partition, one end of the spring is connected to the bearing plate, and the other end of the spring is connected to the partition; The rotating shaft is a two-section structure, comprising an upper shaft and a lower shaft, the stirring rod, partition and threaded sleeve are located on the upper shaft, the cutter and discharge plate are located on the lower shaft, a spline shaft matching the spline groove of the screw is provided at the top of the upper shaft, pins matching the threaded sleeve are provided on both sides of the upper shaft, a slot is provided at the bottom end of the upper shaft, an insert rod matching the slot of the upper shaft is provided at the top end of the lower shaft, and the bottom end of the lower shaft is connected to the driving assembly.

[0012] As a preferred solution of the present invention, wherein: a first toothed disc and a second toothed disc are provided on the lower shaft, the first toothed disc is clamped on the lower shaft, the second toothed disc is connected to the lower shaft, two spur gears are provided between the first toothed disc and the second toothed disc, the spur gears are respectively meshed with the first toothed disc and the second toothed disc, a circular shaft is inserted in the middle of the two spur gears, the spur gears are clamped on the circular shaft, the two ends of the circular shaft are connected to the inner wall of the tank body, a ring is provided in the middle of the circular shaft, the ring of the circular shaft is sleeved on the outside of the lower shaft, the upper cutter is connected to the first toothed disc, and the lower cutter is connected to the lower shaft.

[0013] As a preferred solution of the present invention, the driving assembly includes a motor, a driving bevel gear and a driven bevel gear, the driving bevel gear is connected to the output shaft of the motor, the driven bevel gear is connected to the bottom end of the lower shaft, the driving bevel gear is meshed with the driven bevel gear, and a protective shell is provided on the outside of the driving bevel gear and the driven bevel gear, and the protective shell is installed at the bottom of the tank body.

[0014] As a preferred solution of the present invention, the inner wall of the bottom side of the tank body is a sloped structure, the discharge port is located at the lowest end of the inner wall of the sloped structure of the tank body, a frame is also provided outside the tank body, and the tank body and the motor are both mounted on the frame.

[0015] A method for using an extrusion granulation device for producing isomalt, comprising the following steps: S1, adding isomalt concentrate and isomalt powdered seed crystals from the feed ports on both sides of the tank body, respectively, so that the two materials are mixed in the chamber above the partition; S2, start the motor to rotate forward, so that the output shaft of the motor drives the active bevel gear, the driven bevel gear and the rotating shaft to rotate, the top of the rotating shaft cooperates with the spline groove of the screw through the spline shaft, so that the rotating shaft drives the screw to rotate, the piston barrel on the screw slides downward along the screw to close the feed port, and pressurizes the material between the piston barrel and the partition, and then stirs the material through the stirring rod on the rotating shaft; S3. During the downward pressure of the piston cylinder, the partition is affected by the pressure from above. The partition and the upper shaft of the rotating shaft move downward and compress the spring under the partition. The spline shaft at the top of the upper shaft gradually disengages from the spline groove of the screw. The pins on both sides of the upper shaft pass through the threaded sleeve and move to the bottom to limit the position. The position of the upper shaft and the partition is temporarily locked. The upper shaft no longer drives the screw to rotate, giving the material time to be fully extruded and mixed evenly. S4. After the materials are evenly mixed, start the cylinder so that the output shaft of the cylinder pulls the connecting plate and the baffle to move, and the discharge port on the partition is opened. The materials pass through the discharge port of the partition and enter the chamber above the discharge plate for crushing; S5. There are two layers of cutters on the lower shaft of the rotating shaft. The cutters on the lower layer rotate forward with the lower shaft, and the cutters on the upper layer drive the second toothed disc to rotate forward through the lower shaft. The first toothed disc and the second toothed disc change direction through the spur gear transmission to achieve the reverse rotation of the first toothed disc and the upper cutters, and the materials are crushed by the two layers of cutters rotating in opposite directions. S6. The material crushed into particles falls into the chamber below the discharge plate through the discharge hole of the discharge plate, and then is discharged through the discharge port; S7. After the material processing is completed, the motor is reversed so that the output shaft of the motor drives the rotating shaft to reverse. The pins on both sides of the upper shaft pass through the threaded sleeve and move to the top of it. The partition and the upper shaft are reset by the spring. The spline shaft at the top of the upper shaft is reinserted into the spline groove of the screw. The screw is driven to reverse through the rotating shaft. The piston barrel on the screw slides upward along the screw to the top of the feed port and the motor is turned off. Then the cylinder is started so that the output shaft of the cylinder pushes the connecting plate and the baffle to move, and the discharge port on the partition is closed, waiting for the next feeding process.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The invention adds isomalt concentrated liquid and isomalt powdered crystal seeds into a chamber above a partition in a tank body for extrusion and stirring, mixes the two materials evenly, and then sends the mixed material into a chamber above a discharge plate in the tank body for crushing and discharge, wherein the extrusion and stirring of the materials and the crushing of the materials use one power source, which is not only convenient to operate and has a high degree of automation, but also saves the step of frequent feeding between devices, thereby improving the processing efficiency of isomalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the tank body of the present invention when the material is not processed; Figure 3 This is a schematic diagram of the cross-sectional structure of the tank body of the present invention when extruding and stirring materials; Figure 4 It is a structural schematic diagram of the piston cylinder of the present invention; Figure 5 It is a schematic diagram of the structure of the partition plate and the stirring rod of the present invention; Figure 6 It is a schematic diagram of the structure of the partition plate, the upper shaft and the threaded sleeve of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at A in the middle; Figure 8 It is a schematic diagram of the structure of the two-layer cutting knife and the lower shaft of the present invention; Fig. 9 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0018] In the figure: 1, tank body; 11, top cover; 12, feed port; 13, discharge port; 14, partition; 141, discharge port; 142, placement slot; 15, discharge plate; 16, opening and closing assembly; 161, cylinder; 162, connecting plate; 163, baffle; 17, slideway; 18, frame; 2. Pushing assembly; 21. Piston cylinder; 211. Limiting block; 22. Screw rod; 221. Spline groove; 3. Processing assembly; 31. Rotating shaft; 311. Upper shaft; 3111. Spline shaft; 3112. Pin rod; 3114. Slot; 312. Lower shaft; 3121. Insert rod; 3122. First toothed disc; 3123. Second toothed disc; 3124. Spur gear; 3125. Round shaft; 32. Stirring rod; 33. Cutter; 34. Threaded sleeve; 35. Loading plate; 36. Spring; 4. Driving assembly; 41. Motor; 42. Driving bevel gear; 43. Driven bevel gear; 44. Protective shell. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9An extrusion granulation device for producing isomalt includes a tank body 1, a top cover 11 is installed on the top of the tank body 1, a feed port 12 is arranged on both sides of the upper end of the tank body 1, a discharge port 13 is arranged on one side of the bottom end of the tank body 1, and a partition 14 and a discharge plate 15 are arranged inside the tank body 1; The partition 14 is located between the feed port 12 and the discharge plate 15, and the discharge plate 15 is located above the discharge port 13. The partition 14 is provided with a plurality of discharge ports 141 and an opening and closing assembly 16, and the discharge plate 15 is provided with discharge holes. It should be noted that two handles are provided on the top of the top cover 11, and the top cover 11 is fixed to the top of the tank body 1 by bolts. The diameter of the discharge hole on the discharge plate 15 is adapted to the diameter of the isomalt granules of the finished product. The material above the discharge plate 15 is crushed into a diameter that can pass through the discharge hole and then passes through the discharge hole and falls below the discharge plate 15 for discharge. A pushing assembly 2 is arranged above the partition 14, and the pushing assembly 2 includes a piston cylinder 21 slidably arranged inside the tank body 1; The processing assembly 3 includes a rotating shaft 31, a stirring rod 32 arranged at the upper end of the rotating shaft 31, and two layers of cutters 33 arranged at the lower end of the rotating shaft 31. The rotating shaft 31 passes through the bottom of the tank body 1, the discharge plate 15 and the partition 14 in sequence. The stirring rod 32 is located above the partition 14. The two layers of cutters 33 are both located between the partition 14 and the discharge plate 15, and the two layers of cutters 33 rotate in different directions. Specifically, the number of the stirring rods 32 and the number of the cutting knives 33 of a layer are 3-8, and the stirring rods 32 and the cutting knives 33 are evenly distributed in a circular array, and the knife heads of the two layers of cutting knives 33 are in opposite directions, the cutting direction of the lower layer of cutting knives 33 is clockwise, and the cutting direction of the upper layer of cutting knives 33 is counterclockwise; The driving assembly 4 is arranged on one side of the tank body 1 and is connected to the rotating shaft 31 to drive the rotating shaft 31 to rotate.

[0021] In this embodiment, the pushing assembly 2 further includes a screw rod 22, which passes through the middle of the piston cylinder 21 and is threadedly connected thereto, the top end of the screw rod 22 is rotatably mounted on the top cover 11, and the bottom end of the screw rod 22 is provided with a spline groove 221; It should be noted that the outer diameter of the piston cylinder 21 matches the inner diameter of the tank body 1, and a threaded hole matching the screw 22 is provided in the middle of the piston cylinder 21. The screw 22 is inserted into the threaded hole in the middle of the piston cylinder 21 to form a threaded connection. When the screw 22 rotates, the piston cylinder 21 can move along the screw 22. The top end of the screw 22 is provided with a petal-type clamping ring, and the screw 22 is fixed to the middle of the top cover 11 through the clamping ring, so that the screw 22 can rotate; Wherein, both sides of the piston cylinder 21 are provided with limit blocks 211, and both sides of the inner wall of the tank body 1 are provided with slide grooves 17. The limit blocks 211 on both sides of the piston cylinder 21 are arranged in the slide grooves 17 of the tank body 1. The sliding direction of the piston cylinder 21 is limited by the structure of the limit blocks 211 and the slide grooves 17, so as to prevent the piston cylinder 21 from rotating with the screw 22. When the limit block 211 of the piston cylinder 21 slides to the top of the slide groove 17, the piston cylinder 21 is located above the feed port 12. When the limit block 211 of the piston cylinder 21 slides to the bottom of the slide groove 17, the outer wall of the piston cylinder 21 closes the feed port 12. The opening and closing of the feed port 12 is achieved by moving the piston cylinder 21 up and down.

[0022] In this embodiment, the number of the discharge ports 141 and the opening and closing components 16 on the partition 14 are 3-6. In specific implementation, the number of the discharge ports 141 and the opening and closing components 16 are both set to 3, and the discharge ports 141 and the opening and closing components 16 are evenly distributed in a circular array. Moreover, the discharge ports 141 and the carrying plate 35 are staggered to prevent the material from falling on the carrying plate 35 when being discharged from the discharge ports 141. The opening and closing components 16 include a cylinder 161, a connecting plate 162 and a baffle 163 installed at the bottom of the partition 14. The partition 14 is provided with a placement groove 142 at the top of the discharge port 141, and the baffle 163 is arranged in the placement groove 142. One end of the connecting plate 162 is connected to the output end of the cylinder 161, and the other end of the connecting plate 162 is connected to the baffle 163. Among them, the cross-section of the baffle 163 is a trapezoidal structure, and the two ends of the baffle 163 are inclined surfaces that can shovel out the materials accumulated in the placement groove 142 to avoid affecting the movement of the baffle 163. When the output end of the cylinder 161 is fully extended, the baffle 163 slides to the top of the discharge port 141 to close it. When the output end of the cylinder 161 is fully retracted, the baffle 163 slides to one side of the discharge port 141 to open it.

[0023] In this embodiment, the partition 14 is sleeved on the outside of the rotating shaft 31, and the partition 14 is slidably arranged inside the tank body 1. The rotating shaft 31 is located below the partition 14 and is sleeved with a threaded sleeve 34. 3-6 bearing plates 35 are arranged outside the threaded sleeve 34. One end of the bearing plate 35 is connected to the threaded sleeve 34, and the other end of the bearing plate 35 is connected to the inner wall of the tank body 1. A spring 36 is arranged between each bearing plate 35 and the partition 14, one end of the spring 36 is connected to the bearing plate 35, and the other end of the spring 36 is connected to the partition 14. In specific implementation, the number of the bearing plates 35 and the springs 36 is set to 3, and the bearing plates 35 and the springs 36 are evenly distributed in a circular array; It should be noted that the rotating shaft 31 can rotate in the middle of the partition 14, the partition 14 is slidably placed inside the tank body 1, and a sealing ring is arranged between the partition 14 and the inner wall of the tank body 1; The rotating shaft 31 is a two-stage structure, and the rotating shaft 31 includes an upper shaft 311 and a lower shaft 312. The stirring rod 32, the partition plate 14 and the threaded sleeve 34 are located on the upper shaft 311, and the cutter 33 and the discharge plate 15 are located on the lower shaft 312. The top of the upper shaft 311 is provided with a spline shaft 3111 that matches the spline groove 221 of the screw 22, and both sides of the upper shaft 311 are provided with pins 3112 that match the threaded sleeve 34. The bottom of the upper shaft 311 is provided with a slot 3114, and the top of the lower shaft 312 is provided with an insertion rod 3121 that matches the slot 3114 of the upper shaft 311, and the bottom of the lower shaft 312 is connected to the driving component 4. It should be noted that when the piston cylinder 21 is pressed down, the air in the chamber above the partition 14 will be compressed to squeeze the material. During the process of the piston cylinder 21 being pressed down, the partition 14 will slide downward due to the pressure and compress the spring 36. At this time, the spline shaft 3111 of the upper shaft 311 is disengaged from the spline groove 221 of the screw 22 and no longer drives it to rotate. A threaded groove is provided inside the threaded sleeve 34. When the motor 41 rotates forward, the pin rod 3112 of the upper shaft 311 can move to the bottom thereof along the threaded groove of the threaded sleeve 34. Even if the elastic force of the spring 36 will push the partition 14 and the upper shaft 311 to rise, they will be blocked by the pin rod 3112 of the upper shaft 311. When the motor 41 reverses, the pin rod 3112 of the upper shaft 311 can move to the top thereof along the threaded groove of the threaded sleeve 34, and the partition 14 and the upper shaft 311 are reset by the elastic force of the spring 36.

[0024] In this embodiment, a first toothed disc 3122 and a second toothed disc 3123 are provided on the lower shaft 312, the first toothed disc 3122 is sleeved on the lower shaft 312, the second toothed disc 3123 is connected to the lower shaft 312, two spur gears 3124 are provided between the first toothed disc 3122 and the second toothed disc 3123, the spur gears 3124 are respectively meshed with the first toothed disc 3122 and the second toothed disc 3123, a circular shaft 3125 is inserted in the middle of the two spur gears 3124, the spur gears 3124 are sleeved on the circular shaft 3125, both ends of the circular shaft 3125 are connected to the inner wall of the tank body 1, a collar is provided in the middle of the circular shaft 3125, the collar of the circular shaft 3125 is sleeved on the outside of the lower shaft 312, the upper cutter 33 is connected to the first toothed disc 3122, and the lower cutter 33 is connected to the lower shaft 312; It should be noted that when the motor 41 rotates forward, the lower layer of cutters 33 and the second toothed disc 3123 rotate forward following the lower shaft 312, the first toothed disc 3122 and the second toothed disc 3123 change direction through the spur gear 3124, the first toothed disc 3122 and the upper layer of cutters 33 rotate in reverse, and the two layers of cutters 33 rotate in opposite directions.

[0025] In this embodiment, the driving assembly 4 includes a motor 41, a driving bevel gear 42 and a driven bevel gear 43. The driving bevel gear 42 is connected to the output shaft of the motor 41, and the driven bevel gear 43 is connected to the bottom end of the lower shaft 312. The driving bevel gear 42 is meshed with the driven bevel gear 43. A protective shell 44 is provided outside the driving bevel gear 42 and the driven bevel gear 43, and the protective shell 44 is installed at the bottom of the tank body 1.

[0026] In this embodiment, the inner wall of the bottom side of the tank body 1 is a sloped structure, and the discharge port 13 is located at the lowest end of the inner wall of the sloped structure of the tank body 1, so that the material falling under the discharge plate 15 can slide into the discharge port 13 for easy discharge. A frame 18 is also provided on the outside of the tank body 1, and the tank body 1 and the motor 41 are both installed on the frame 18.

[0027] The method for using the extrusion granulation device for producing isomalt of the present invention comprises the following steps: S1, adding isomalt concentrate and isomalt powdered seed crystals from the feed ports 12 on both sides of the tank body 1, respectively, so that the two materials are mixed in the chamber above the partition 14; S2, start the motor 41 to rotate forward, so that the output shaft of the motor 41 drives the active bevel gear 42, the driven bevel gear 43 and the rotating shaft 31 to rotate, and the top of the rotating shaft 31 cooperates with the spline groove 221 of the screw 22 through the spline shaft 3111, so that the rotating shaft 31 drives the screw 22 to rotate, and the piston cylinder 21 on the screw 22 slides downward along the screw 22 to close the feed port 12, and pressurizes the material between the piston cylinder 21 and the partition 14, and then stirs the material through the stirring rod 32 on the rotating shaft 31; S3. During the downward pressing of the piston cylinder 21, the partition 14 is affected by the pressure from above, and the partition 14 and the upper shaft 311 of the rotating shaft 31 move downward and compress the spring 36 below the partition 14. The spline shaft 3111 at the top of the upper shaft 311 gradually disengages from the spline groove 221 of the screw 22. The pins 3112 on both sides of the upper shaft 311 pass through the threaded sleeve 34 and move to its bottom for limiting, temporarily locking the position of the upper shaft 311 and the partition 14. The upper shaft 311 no longer drives the screw 22 to rotate, giving the materials time to be fully extruded and mixed evenly. S4. After the materials are evenly mixed, the cylinder 161 is started, so that the output shaft of the cylinder 161 pulls the connecting plate 162 and the baffle 163 to move, and the discharge port 141 on the partition 14 is opened. The materials pass through the discharge port 141 of the partition 14 and enter the chamber above the discharge plate 15 for crushing; It should be noted that the air between the partition 14 and the piston cylinder 21 is compressed by the piston cylinder 21, and the temperature in the chamber rises rapidly under the action of pressure. At this time, the material remains in a liquid state. After being fully stirred by the stirring rod 32, it enters the chamber between the partition 14 and the discharge plate 15 from the discharge port 141 of the partition 14. At this time, the temperature drops rapidly and the material solidifies. The material is then broken into particles by the cutter 33. In specific implementation, a vent or a cooling fan can be provided on the tank body 1 around the chamber between the partition 14 and the discharge plate 15 to accelerate the cooling and solidification of the material. S5. The lower shaft 312 of the rotating shaft 31 has two layers of cutters 33. The cutters 33 of the lower layer rotate forwardly following the lower shaft 312. The cutters 33 of the upper layer drive the second toothed disc 3123 to rotate forwardly through the lower shaft 312. The first toothed disc 3122 and the second toothed disc 3123 are driven to change direction by the spur gear 3124, so that the first toothed disc 3122 and the upper cutters 33 rotate in reverse, and the materials are crushed by the two layers of cutters 33 rotating in opposite directions. S6, the material crushed into particles falls into the chamber below the discharge plate 15 through the discharge hole of the discharge plate 15, and then is discharged through the discharge port 13; S7. After the material processing is completed, the motor 41 is reversed so that the output shaft of the motor 41 drives the rotating shaft 31 to reverse, and the pins 3112 on both sides of the upper shaft 311 pass through the threaded sleeve 34 and move to the top thereof, and the partition 14 and the upper shaft 311 are reset by the spring 36, and the spline shaft 3111 at the top of the upper shaft 311 is reinserted into the spline groove 221 of the screw 22, and the screw 22 is driven to reverse by the rotating shaft 31, and the piston cylinder 21 on the screw 22 slides upward along the screw 22 to the top of the feed port 12, and the motor 41 is turned off, and then the cylinder 161 is started, so that the output shaft of the cylinder 161 pushes the connecting plate 162 and the baffle 163 to move, and the discharge port 141 on the partition 14 is closed, waiting for the next feeding processing.

[0028] In summary, the extrusion granulation device uses one power source for both the extrusion and stirring of the material and the crushing of the material, which is not only convenient to operate and highly automated, but also saves the step of frequent feeding between devices, thereby improving the processing efficiency of isomalt.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An extrusion granulation device for producing isomalt, characterized in that: include, A tank body (1), wherein a top cover (11) is installed on the top of the tank body (1), feed ports (12) are arranged on both sides of the upper end of the tank body (1), a discharge port (13) is arranged on one side of the lower end of the tank body (1), and a partition plate (14) and a discharge plate (15) are arranged inside the tank body (1); The partition (14) is located between the feed port (12) and the discharge plate (15), the discharge plate (15) is located above the discharge port (13), a plurality of discharge ports (141) and an opening and closing assembly (16) are provided on the partition (14), and discharge holes are arranged on the discharge plate (15); A pushing assembly (2) is arranged above the partition (14), and the pushing assembly (2) comprises a piston cylinder (21) slidably arranged inside the tank body (1); A processing assembly (3), comprising a rotating shaft (31), a stirring rod (32) arranged at the upper end of the rotating shaft (31), and two layers of cutting knives (33) arranged at the lower end of the rotating shaft (31), wherein the rotating shaft (31) sequentially passes through the bottom of the tank body (1), the discharge plate (15), and the partition (14), the stirring rod (32) is located above the partition (14), the two layers of the cutting knives (33) are both located between the partition (14) and the discharge plate (15), and the two layers of the cutting knives (33) rotate in opposite directions; A driving assembly (4) is arranged on one side of the tank body (1); the driving assembly (4) is connected to the rotating shaft (31) to drive the rotating shaft (31) to rotate.

2. The extrusion granulation device for producing isomalt according to claim 1, characterized in that: The pushing assembly (2) further comprises a screw rod (22), the screw rod (22) passing through the middle of the piston cylinder (21) and being threadedly connected thereto, the top end of the screw rod (22) being rotatably mounted on the top cover (11), and the bottom end of the screw rod (22) being provided with a spline groove (221).

3. The extrusion granulation device for producing isomalt according to claim 2, characterized in that: Limit blocks (211) are provided on both sides of the piston cylinder (21), and slide grooves (17) are provided on both sides of the inner wall of the tank body (1), and the limit blocks (211) on both sides of the piston cylinder (21) are arranged in the slide grooves (17) of the tank body (1); When the limit block (211) of the piston cylinder (21) slides to the top end of the slide groove (17), the piston cylinder (21) is located above the feed port (12); when the limit block (211) of the piston cylinder (21) slides to the bottom end of the slide groove (17), the outer wall of the piston cylinder (21) closes the feed port (12).

4. The extrusion granulation device for producing isomalt according to claim 2 or 3, characterized in that: The number of the discharge outlets (141) and the opening and closing components (16) on the partition (14) is 3-6. The opening and closing components (16) include a cylinder (161), a connecting plate (162) and a baffle (163) installed at the bottom of the partition (14). The partition (14) is provided with a placement groove (142) at the top of the discharge outlet (141). The baffle (163) is arranged in the placement groove (142). One end of the connecting plate (162) is connected to the output end of the cylinder (161), and the other end of the connecting plate (162) is connected to the baffle (163).

5. The extrusion granulation device for producing isomalt according to claim 4, characterized in that: The baffle (163) has a trapezoidal cross-section. When the output end of the cylinder (161) is fully extended, the baffle (163) slides to the top of the discharge port (141) to close it. When the output end of the cylinder (161) is fully retracted, the baffle (163) slides to one side of the discharge port (141) to open it.

6. The extrusion granulation device for producing isomalt according to claim 2 or 5, characterized in that: The partition (14) is sleeved on the outside of the rotating shaft (31), and the partition (14) is slidably arranged inside the tank body (1). The rotating shaft (31) is located below the partition (14) and sleeved with a threaded sleeve (34). Three to six bearing plates (35) are arranged outside the threaded sleeve (34), one end of the bearing plate (35) is connected to the threaded sleeve (34), and the other end of the bearing plate (35) is connected to the inner wall of the tank body (1). A spring (36) is arranged between each bearing plate (35) and the partition (14), one end of the spring (36) is connected to the bearing plate (35), and the other end of the spring (36) is connected to the partition (14); The rotating shaft (31) is a two-section structure, comprising an upper shaft (311) and a lower shaft (312); the stirring rod (32), the partition plate (14) and the threaded sleeve (34) are located on the upper shaft (311); the cutter (33) and the discharge plate (15) are located on the lower shaft (312); a spline shaft (3111) matching with a spline groove (221) of the screw rod (22) is arranged at the top end of the upper shaft (311); pins (3112) matching with the threaded sleeve (34) are arranged on both sides of the upper shaft (311); a slot (3114) is arranged at the bottom end of the upper shaft (311); a plug rod (3121) matching with the slot (3114) of the upper shaft (311) is arranged at the top end of the lower shaft (312); and the bottom end of the lower shaft (312) is connected to the driving assembly (4).

7. The extrusion granulation device for producing isomalt according to claim 6, characterized in that: The lower shaft (312) is provided with a first toothed disc (3122) and a second toothed disc (3123); the first toothed disc (3122) is sleeved on the lower shaft (312); the second toothed disc (3123) is connected to the lower shaft (312); two spur gears (3124) are provided between the first toothed disc (3122) and the second toothed disc (3123); the spur gears (3124) are respectively meshed with the first toothed disc (3122) and the second toothed disc (3123); the two A round shaft (3125) is inserted into the middle of the spur gear (3124), the spur gear (3124) is sleeved on the round shaft (3125), both ends of the round shaft (3125) are connected to the inner wall of the tank body (1), a collar is provided in the middle of the round shaft (3125), the collar of the round shaft (3125) is sleeved on the outside of the lower shaft (312), the upper cutter (33) is connected to the first toothed disc (3122), and the lower cutter (33) is connected to the lower shaft (312).

8. The extrusion granulation device for producing isomalt according to claim 7, characterized in that: The driving assembly (4) comprises a motor (41), a driving bevel gear (42) and a driven bevel gear (43); the driving bevel gear (42) is connected to the output shaft of the motor (41); the driven bevel gear (43) is connected to the bottom end of the lower shaft (312); the driving bevel gear (42) and the driven bevel gear (43) are meshed; a protective shell (44) is provided outside the driving bevel gear (42) and the driven bevel gear (43); the protective shell (44) is mounted on the bottom of the tank body (1).

9. The extrusion granulation device for producing isomalt according to claim 8, characterized in that: The inner wall of the bottom side of the tank body (1) is an inclined structure, the discharge port (13) is located at the lowest end of the inner wall of the inclined structure of the tank body (1), and a frame (18) is also provided outside the tank body (1), and the tank body (1) and the motor (41) are both mounted on the frame (18).

10. A method for using the extrusion granulation device for producing isomalt according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, adding isomalt concentrate and isomalt powdered seed crystals from the feed ports (12) on both sides of the tank body (1) respectively, so that the two materials are mixed in the chamber above the partition (14); S2, starting the motor (41) to rotate forward, so that the output shaft of the motor (41) drives the driving bevel gear (42), the driven bevel gear (43) and the rotating shaft (31) to rotate, and the top end of the rotating shaft (31) cooperates with the spline groove (221) of the screw (22) through the spline shaft (3111), so that the rotating shaft (31) drives the screw (22) to rotate, and the piston cylinder (21) on the screw (22) slides downward along the screw (22) to close the feed port (12), and pressurizes the material between the piston cylinder (21) and the partition (14), and then stirs the material through the stirring rod (32) on the rotating shaft (31); S3. During the downward pressing process of the piston cylinder (21), the partition (14) is affected by the pressure from above, and the partition (14) and the upper shaft (311) of the rotating shaft (31) move downward and compress the spring (36) below the partition (14). The spline shaft (3111) at the top of the upper shaft (311) gradually disengages from the spline groove (221) of the screw rod (22). The pins (3112) on both sides of the upper shaft (311) pass through the threaded sleeve (34) and move to the bottom thereof to limit the position, temporarily locking the position of the upper shaft (311) and the partition (14). The upper shaft (311) no longer drives the screw rod (22) to rotate, giving the materials time to be fully extruded and mixed evenly. S4. After the materials are evenly mixed, the cylinder (161) is started, so that the output shaft of the cylinder (161) pulls the connecting plate (162) and the baffle (163) to move, thereby opening the discharge port (141) on the partition (14), and the materials enter the chamber above the discharge plate (15) through the discharge port (141) of the partition (14) to be crushed; S5, the lower shaft (312) of the rotating shaft (31) is provided with two layers of cutters (33), the cutters (33) of the lower layer rotate forwardly following the lower shaft (312), the cutters (33) of the upper layer drive the second toothed disc (3123) to rotate forwardly through the lower shaft (312), the first toothed disc (3122) and the second toothed disc (3123) are driven to change direction through a spur gear (3124), so that the first toothed disc (3122) and the cutters (33) of the upper layer rotate in reverse, and the materials are crushed by the two layers of cutters (33) rotating in opposite directions; S6, the material crushed into particles falls into the chamber below the discharge plate (15) through the discharge hole of the discharge plate (15), and is then discharged through the discharge port (13); S7. After the material processing is completed, the motor (41) is reversed, so that the output shaft of the motor (41) drives the rotating shaft (31) to reverse, the pins (3112) on both sides of the upper shaft (311) pass through the threaded sleeve (34) and move to the upper side thereof, the partition (14) and the upper shaft (311) are reset by the spring (36), the spline shaft (3111) at the top of the upper shaft (311) is reinserted into the spline groove (221) of the screw (22), the screw (22) is driven to reverse by the rotating shaft (31), the piston cylinder (21) on the screw (22) slides upward along the screw (22) to the upper side of the feed port (12), the motor (41) is turned off, and the cylinder (161) is started again, so that the output shaft of the cylinder (161) pushes the connecting plate (162) and the baffle (163) to move, and the discharge port (141) on the partition (14) is closed, waiting for the next feeding processing.

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